Abstract
Kinetics of biological removal of COD from a synthetic wastewater in a continuous fluidized bed containing sponge particles with wire mesh was investigated. Synthetic wastewater consisted of diluted molasses, urea, KH2PO4 and MgSO4 resulting in COD/N/P = 100/8/1. Fluidized bed contained sponge particles surrounded by stainless steel wires as support particles for organisms. A culture of Zooglea ramigera was used as the dominant organisms in mixed culture media throughout the experiments.
The system was operated continuously with different hydraulic residence times, and COD loading rates and the variation of effluent COD concentration with those parameters was investigated. Kinetic constants of the system were determined by using the continuous experimental data. System has been operated under COD limitation and DO limitations were overcome by vigirous aeration. Kinetic constants determined in this system were in good agreement with literature values with a possible inhibition effect on Ks term.
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Kargi, F; Park, J.K.: (1982). Optimal biofilm thickness for fluidized bed biofilm reactors. J. Chem. Technol. Biotechnol. 32, 744–748
Atkinson B; Blacks, G.M; Pinches, A.: (May, 1980). Process intensification using cell support systems. Process Biochemistry 24–32
Black, G.M; Webb, C; Matthews, T.M; Atkinson, B.: (1984). Practical reactor systems for yeast cell immobilization using biomass support particles. Biotechnol. Bioeng. 26, 134–141
Atkinson, B.: (1974). Biochemical Reactors. Pion Ltd. London
Puhakka, J.A; Jarvinen, K.: (1992). Aerobic fluidized bed treatment of polychlorinated phenolic wood preservative constituents. Wat. Res. 26(6), 765–770
Ray, B.T; Huang, J.C; Dempsey, B.A.: (1989). Sludge digestion by anaerobic fluidized beds II: Kinetic model. J. Env. Eng. 115, 1156–1170
Worden, R.M; Donaldson, T.L.: (1987). Dynamics of biological fixed film for phenol degradation in a fluidized bed reactor. Biotechnol. Bioeng. 30, 398–412
Hu, L.Z; Shieh, W.K.: (1987). Anoxic biofilm degradation of monocyclic aromatic compounds. Biotechnol. Bioeng. 30, 1077–1083
Harada, H; ando, H; Momonoi, K.: (1987). Process analysis of fluidized bed biofilm reactor for denitrification. Wat. Sci. Tech. 19, 151–162
Shieh, W.K.; Li, C.T.: (1989). Performance and kinetics of aerated fluidized bed biofilm reactor. J. Env. Eng. 115, 65–79
Kuba, T; Furumai, H; Kusuda, T.: (1990). A kinetic study of methanogenesis by attached biomass in a fluidized bed. Wat. Res. 24, 1365–1372
Bignami, L; Eromo, B; Gavasci, R; Rolle, E.: (1991). Modelling and experiments on fluidized bed biofilm reactors. Wat. Sci. Technol. 24, 47–58
Srekrishnan, T.R; Ramachandran, K.B; Ghosh, P.: (1991). Effect of operating variables on biofilm formation and performance of an anaerobic fluidized bed bioreactor. Biotechnol. Bioeng. 37, 557–566
Livingston, A.G.: (1991). Biodegradation of 3,4-dichloroaniline in a fluidized bed bioreactor and a steady-state biofilm kinetic model. Biotechnol. Bioeng. 38, 260–272
Stevens, D.K; Berthouex, P.M; Chapman, T.W.: (1989). Dynamic model of nitrification in fluidized bed. J. Env. Eng. 115, 910–929
Shuler, M.L; Kargi, F.:(1992). Bioprocess Engineering: Basic Concepts. Prentice Hall. USA
Kargi, F; Toprak, H.: (1994). Rational design of metal mesh particles for biological fluidized bed reactors. J. Chem. Technol. Biotechnol. 59, 201–204
Cooper, P.F; Wheeldon, D.H.V.: (1980). Fluidized and expanded bed reactors for wastewater treatment. J. Wat. Pol. Cont. 79, 286–306
Standard Methods for the Examination of Water and Wastewater. (1981). Fifteenth end. APHA, Washington, D.C. USA
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This study was supported by the Technical and Scientific Research Council of Turkiye.
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Kargi, F., Karapinar, I. Kinetics of COD removal from a synthetic wastewater in a continuous biological fluidized bed. Bioprocess Engineering 13, 265–270 (1995). https://doi.org/10.1007/BF00417638
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DOI: https://doi.org/10.1007/BF00417638